Diving helmet



FIG. 1 is a front view of a diving helmet showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a perspective view thereof; and,

FIG. 7 is a side elevational view taken along line 7--7 in FIG. 2. 

The ornamental design for a diving helmet, as shown. 